diff --git a/package.json b/package.json
index 2a4ca98..c688cc8 100644
--- a/package.json
+++ b/package.json
@@ -62,7 +62,7 @@
     "gatsby-source-filesystem": "2.1.48",
     "gatsby-source-ghost": "4.0.4",
     "gatsby-transformer-sharp": "2.3.16",
-    "lodash": "4.17.15",
+    "lodash": "4.17.21",
     "prismjs": "^1.20.0",
     "react": "16.13.0",
     "react-dom": "16.13.0",
diff --git a/yarn.lock b/yarn.lock
index 63af445..a8b0dee 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -9087,7 +9087,7 @@ lodash@4.17.15:
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
   integrity sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==
 
-lodash@^4.15.0, lodash@^4.16.4, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.19, lodash@^4.17.20, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0:
+lodash@4.17.21, lodash@^4.15.0, lodash@^4.16.4, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.19, lodash@^4.17.20, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0:
   version "4.17.21"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
   integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==